baber/WOPTO huggingface dataset:
Patent CA-2004476-A1 (CA)
Title: Adaptive rate control for echo cancelling modem
Inventor: SRIDHAR MANICKAM R
IPC: H04L5/16
Filed: 1989-12-04
Abstract: ABSTRACT OF THE DISCLOSURE      An echo cancellation modem for full-duplex communication over a channel with a remote device in accordance with one of several possible modulation schemes suitable for different channel qualities, respectively.  The modem includes an echo canceller for reducing echo components appearing in the channel signal while leaving a residual echo component in the echo reduced channel signal, a monitor for determining the quality of the channel based on an analysis of the residual echo component, and a controller for selecting an acceptable modulation scheme, based on the analysis of the monitor.  The modem selects the acceptable modulation scheme prior to data communication and it also requests changes to the appropriate level of modulation during data communication when the monitor indicates that the channel quality has changed significantly.  The modem requests the remote device to operate at the selected rate and begins operating at the selected rate only if the remote device concurs.  In another aspect, the modem includes a fall forward flag which is used to prevent contention between the modem and the remote device which would occur if the modem repeatedly requested an increase to a higher level modulation scheme which the remote device cannot support.  In another aspect, the modem includes re-initialization logic which selects the appropraite thresholds used to monitor the quality of the channel depending upon whether the modulation option is coded or uncoded.
Patent CA-2006094-A1 (CA)
Title: Alcohol and ether derivatives
Inventor: GIRODEAU JEAN-MARC M M
IPC: A61P37/08
Filed: 1989-12-20
Abstract: A B S T R A C T     TITLE: ALCOLOL AND ETHER DERIVATIVES            The invention concerns a compound of the formula I, I    wherein Ar1 is optionally substituted phenyl or naphthyl; A1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene; Ar2 is optionally substituted phenylene, or a 6 membered heterocyclene moiety containing up to three nitrogen atoms; R1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; wherein R2 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl; and wherein R3 is hydroxy-(1-4C)alkyl, mercapto-(1-4C)alkyl, (1-4C)alkoxy-(1-4C)alkyl, (3-4C)alkenyloxy-(1-4C)alkyl, (3-4C)alkynyloxy-(1-4C)alkyl, (1-4C)alkoxy-(2-4C)alkoxy-(1-4C)alkyl, (1-4C)alkylthio-(1-4C)alkyl, (1-4C)alkylsulphinyl-(1-4C)alkyl, (1-4C)alkylsulphonyl-(1-4C)alkyl, (1-4C)alkoxycarbonyl-(1-4C)alkyl, (2-4C)alkanoyl-(1-4C)alkyl, (2-4C)alkanoyloxy-(1-4C)alkyl or cyano-(1-4C)alkyl; or R3 is oxiranyl, oxetanyl, tetrahydrofuranyl or tetrahydropyranyl; or a pharmaceutically-acceptable salt thereof.           The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
Patent CA-2007091-A1 (CA)
Title: Wound-inducible and potato tuber specific transcriptional regulation
Inventor: KEIL MICHAEL
IPC: C12N15/82
Filed: 1989-12-21
Abstract: ABSTRACT            There is described a new DNA sequence of an expression cassette in which the regulating regions for the wound-inducible transcriptional regulation in the stem and in leaves as well as for the constitutive transcriptional regulation in the potato tubers are localised, as well as the transference of these in vectors containing the DNA sequence in the plant genome, by using Agrobacterium tumefaciens as transfer microorganism. The transferred DNA sequence is concerned both for the regulation of endogenous products as well as for the production of heterologous products. THe method is especially useful in combination with the expression of pest-resistant genes in leaves, stems and tubers and following such a use for the production of useful proteins in potato tubers.
Patent CA-2008091-A1 (CA)
Inventor: CHAO LI-CHUNG
IPC: A24D1/22
Filed: 1990-01-18
Abstract: A smoking device having a cylindrical fuel rod circumscribed by an air impermeable wrapper.  The fuel rod consists of a homogeneous mixture of a non-tobacco fuel, a non-combustible tobacco, an aerosol generating material and a heat sink material.
Patent CA-2009543-A1 (CA)
Title: Method and apparatus for mixing liquid and coagulant
Inventor: OKAMOTO SOHEI
IPC: B01F27/93
Filed: 1990-02-07
Abstract: ABSTRACT OF THE DISCLOSURE   An apparatus for mixing liquid and coagulant comprising: a body having an internal space of circular section. the internal space extending in the direction which intersects a horizontal line; first introducing means for introducing the liquid into the body; second introducing means for introducing the coagulant into the body; receiving means disposed inside the body so as to receive the liquid and the coagulant from the first and second introducing means; and drive means for rotating the receiving means about the axis of the body.  The receiving means is provided with a disk disposed to intersect the axis of the body and rotated about the axis of the body by the drive means.
Patent CA-2013379-A1 (CA)
IPC: H04M3/00
Filed: 1990-03-29
Abstract: AUTOMATICALLY-EFFECTED MOVE OF A SUBSCRIBER         BETWEEN ELECTRONIC MESSAGE SERVICE      SYSTEMS IN A NETWORK    Abstract In a network (10) of voice-mail message service systems (12-14), each system includes an arrangement (22) for automatically moving the serving of one or moresubscribers from itself to another system. In response to administrator (29) input, the source system retrieves each moving subscriber's mailbox (200) contents, translates subscriber I.D.s appearing therein into universal names and extensionnumbers, and transfers the translated contents, including delivery lists (222) and messages (211), to the destination system. The destination system creates a new mailbox for each moved subscriber, translates the universal information into subscriber I.D.s, and populates the new mailbox with the transferred contents. The source system informs third systems of the move, so they can update their information. During audits, the source and destination systems search their databases to find any information affected by the move and update it; the sourcesystem also deletes the moved subscribers' old mailboxes.
Patent CA-2014878-A1 (CA)
Title: Alkylated diaryl oxide monosulfonate collectors useful in the flotation of minerals
Inventor: KLIMPEL RICHARD R
IPC: B03D1/12
Filed: 1990-04-19
Abstract: ABSTRACT         Alkylated diaryl oxide monosulfonic acids or salts thereof or their mixture are useful as collectors in the flotation of minerals, particularly oxide minerals.     C-38,093
Patent CA-2019399-A1 (CA)
Title: Toolbox with peaked roof
Inventor: HANNA THOMAS E
IPC: B25H3/02
Filed: 1990-06-20
Abstract: ABSTRACT OF THE DISCLOSURE         A toolbox (10) includes a base (11) for containing materials and a cover (15) attached by hinges (16) to the base (11).  The cover (15) includes sidewalls (20, 21) which extend upwardly from the base (11) and are joined near the top thereof by a curvilinear portion (22).  At least one closure member (36) extends between the sidewalls (20,21) below the curvilinear portion (22) to define with the sidewalls (20,21) and the curvilinear portion (22) at least one compartment (35) within the cover (15).
Patent CA-2025563-A1 (CA)
Title: Immunological assaying method, reagent and kit therefor
Inventor: HOSODA KENJI
IPC: G01N33/86
Filed: 1990-01-19
Abstract: ABSTRACT A method of assaying a trace amount of protein in an assay sample by immunological reaction by using antibody immobilized to an insoluble carrier, and a labelled antibody The immunological reaction is carried out in the presence of the serum of fowl.  A reagent and a kit therefor are also provided.  According to this invention, a trace amount of protein, especially a co-agulation fibrinolysis system protein, in an assay sample can be determined with high sensitivity.
Patent CA-2026725-A1 (CA)
Title: Method and apparatus for separating continuous cast strip from a rotating substrate
Inventor: KING EDWARD L
IPC: B22D11/06
Filed: 1990-10-02
Abstract: The continuous casting of strip, ribbon and wire Is improved by using a free jet nozzle which provides a fluid that follows a rotating substrate surface to the separation point. The nozzle includes an inclined surface having a ratio of its length to the gap between the substrate and the nozzle edge of 5:1 to 15:1. The inclined surface improves the ability of the jet to tangentially follow the substrate in a direction opposite to its rotation to the separation point.  This also allows a close positioning of the nozzle to the substrate which serves to provide a back-up mechanical separation means by using the edge of nozzle lip. The nozzle may be rotated from its operating position for cleaning of the substrate and the nozzle.
Patent CA-2028133-A1 (CA)
Title: Heat exchanger
Inventor: CLARKE JOHN B
IPC: F03G7/04
Filed: 1990-03-09
Abstract: A heat exchanger is built using banks of rollbonded panels (25) immersed in a tank (16) open to atmospheric pressure. Each bank of panels is connected in parallel with others by a self-sealing coupling (36) which can be disconnected for servicing or replacement of the panel bank without the loss of working fluid, and during the operation of the heat exchanger.
Patent CA-2029136-A1 (CA)
Title: Braid electrode leads and catheters and methods for using the same
Inventor: SCOTT STEVEN E
IPC: A61N1/372
Filed: 1990-11-01
Abstract: ABSTRACT   A lead for implantation in a patient's body, for conducting a countershock from a source of elec-trical energy, is disclosed.  The lead comprises an elongate tubular insulating member, a terminal at a proximal end of the member, and an exposed cylindri-cal, electrically conductive, braid electrode sur-rounding a portion of the lead, spaced from the termi-nal.  An insulated electrical conductor interconnects the terminal and the braid electrode.  Preferably, the insulated electrical conductor comprises an extension of the braid electrode, which extension is surrounded by a tubular insulating sheath.  When used as a bi-polar endocardial catheter, a tip electrode is pro-vided at a distal end of the lead, and a second ter-minal is provided at a proximal end thereof.  A second conductor is provided to interconnect the tip elec-trode and the second terminal.  In a tripolar form, a ring electrode is disposed between the braid electrode and the tip electrode, and a third terminal is pro-vided at the proximal end of the lead.  A third con-ductor interconnects the third terminal and the ring electrode.
Patent CA-2030072-A1 (CA)
Title: Stirrup Leather Bar for a Horse Saddle
Inventor: MOMMEJA LAURENT
IPC: B68C1/16
Filed: 1990-11-15
Abstract: Stirrup leather support for a riding saddle (1), arranged so as to receive a stirrup leather (4) supporting a stirrup (5), characterised in that it is equipped with a pivoting piece (12) delimiting two possible adjustment positions for the stirrup leather, a first position (4a) in front of said piece (12) when raised, which forms a stop for the stirrup leather, and a second, drawn-back position (4b), in which the piece (12) is folded down. 
<??>This support makes it possible for the rider easily to find his position on the saddle, whatever the shape and ability of the rider. 
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Patent CA-2030087-A1 (CA)
Title: Pneumatic tire for all-weather use
Inventor: KIDA MASASHI
IPC: C08L21/00
Filed: 1990-11-15
Abstract: ABSTRACT OF THE DISCLOSURE     Pneumatic tires are made up essentially of a tread portion formed of a selected class of cellular rubbers of a closed-cell structure.  The cellular rubber has specified magnitudes of hardnesses, average areas of cells, variation coefficients of areas of cells and space factors of cells.          Braking and driving capabilities on ice and snow and running stability and abrasion resistance on dry and wet roads are greatly enhanced.
Patent CA-2035151-A1 (CA)
Title: Process for the preparation by crushing of scrap comprising metal parts provided with a surface coating
Inventor: MEYER KLAUS
IPC: C25C3/12
Filed: 1991-01-29
Abstract: Abstract Known processes for the preparation by crushing of scrap comprising metal parts provided with a surface coating have the disadvantage that they are very complex and/or only allow the reuse of one component of the scrap.            These disadvantages can be avoided if the crushed parts are  fed  to  a  carbon-containing  mass  used  in  the electrochemical industry, in particular a S?derberg mass or a carbon-containing mass for the production of cathode or anode blocks for the generation of aluminium by the Hall-Heroult process.
Patent CA-2035742-A1 (CA)
Title: Non-welded support plate or bed limiter for packed towers and method of making same
Inventor: MOORE FRANK D
IPC: B01D53/18
Filed: 1991-02-05
Abstract: ABSTRACT A non-welded plate for supporting packing materials or limiting the upward movement of such packing materials in a packed column of a gas and liquid contacting apparatus is comprised of a plurality of first and second support beams.  The first support beams have means for fastening to internal support members of the apparatus affixed thereon.  The first and second support beams are essentially perpendicular to each other and are attached together by retaining means, such as a pin.  Voids between the support beams may be covered with screen to provide further support or limitation.
Patent CA-2038763-A1 (CA)
Inventor: FRANKENFELD JOHN W
IPC: C10N40/04
Filed: 1991-03-21
Abstract: The addition of certain aromatic substituted benzotriazole compounds to a lubricant imparts improved oxidation stability to the lubricant. The oxidation stability is particularly enhanced when the substitu-ents on the substituted aromatic ring are strong electron donors.
Patent CA-2041787-A1 (CA)
Title: Gutter guard construction
Inventor: NIELSEN J ARNE
IPC: E04D13/076
Filed: 1991-05-03
Abstract: GUTTER GUARD CONSTRUCTION                Abstract of the Disclosure A gutter guard is formed of an elongated flat sheet of perforated metal.  The outer edge of the gutter guard is attached to the outer edge or lip of the gutter by several clips.  The clips are preferably hinged which permits the gutter guard to pivot around the hinge clip.  The inner edge of the gutter guard rests on the roof.  A dam or weir juts upwardly from the surface of the perforated metal sheet parallel to and adjacent the outer edge to block or impede the flow of water thereacross.  One or more handles are attached to the gutter guard to facilitate dumping of leaves and debris collected thereon.  An extension rod having a hook-like head attachment can then be operated from the ground to grasp the handle and rotate the hinged gutter guard about the edge of the gutter.
Patent CA-2041951-A1 (CA)
Title: Method for preventing onset of restenosis after angioplasty employing pravastatin
Inventor: MCGOVERN MARK E
IPC: A61K38/55
Filed: 1991-05-07
Abstract: Abstract METHOD FOR PREVENTING ONSET OF RESTENOSIS  AFTER ANGIOPLASTY EMPLOYING PRAVASTATIN        A method is provided for preventing or reducing the risk of restenosis following angioplasty by administering pravastatin alone or in combination with an ACE inhibitor such as captopril or ceranapril, prior to, during and/or after angioplasty.
Patent CA-2042976-A1 (CA)
Title: Method and apparatus for producing a vegetable product
Inventor: PLANT REX
IPC: A23N15/00
Filed: 1991-05-21
Abstract: METHOD AND APPARATUS FOR PRODUCING A VEGETABLE PRODUCT            INVENTORS:  REX PLANT and JOHN MARTON                 ABSTRACT OF THE DISCLOSURE          A  method  and  apparatus  for  producing  a  product  of predetermined shape from a vegetable, in which the vegetable is split and the opposed sections are scooped out.  In another aspect of the invention a shaft penetrates the vegetable and blades are laterally flexed to carve out a cavity when the shaft is rotated. In still another aspect of the invention a pair of sloping U-shaped cutters move together into the vegetable and a U-shaped knife in each of the cutters rotates to form a heart-shaped core.
Patent CA-2043727-A1 (CA)
Inventor: LAROUCHE J MARIUS
IPC: B60S1/50
Filed: 1991-05-31
Abstract: Dispositif pour déversement de liquide lave-glace au réservoir automobile. La présente invention concerne un dispositif ayant la forme d'une petite portière refermable après utilisation dont le côté opposé est muni d'un entonnoir. Par cet accès et au moyen de son mécanisme relié aux éléments de raccordement, le liquide se déversera directement au réservoir de laveglace par le truchement de l'entonnoir. Cette portière sera localisé sur le côté avant du rebord de l'aile gauche ou droite du véhicule moteur on directement aux endroits appropriés.
Patent CA-2044099-A1 (CA)
Inventor: BLAND RONALD G
IPC: C09K8/02
Filed: 1991-06-07
Abstract: Brine-in-glycol emulsions are shown for use as well working fluids. The fluids have a glycol external phase and a brine internal phase. The separate phases are emulsified to create an emulsion and weighted with traditional weighting agents. The external phase is soluble or dispersible in sea water when diluted upon discharge.
Patent CA-2044520-A1 (CA)
Inventor: SAVALL VINCENT
IPC: B01D24/46
Filed: 1991-06-13
Abstract: Dispositif destiné à effectuer l'évacuation de l'eau de lavage des filtres à matériau filtrant granulaire, lavés simultanément à l'eau et à l'air, tels que ceux utilisés notamment dans le traitement de l'eau, et la récupération des particules de matériau filtrant granulaire entraînées par l'eau pendant le lavage, caractérisé en ce qu'il comporte : - un organe calibré (11) de collecte et d'évacuation de l'eau sale ; - des cloisons internes et externes (10,10a - 20,20a) placées de part et d'autre de l'organe de collecte, délimitant à l'intérieur des cloisons internes une zone de récupération de l'eau, et, entre les cloisons internes et externes, des zones de tranquillisation de l'écoulement favorisant la séparation, par décantation à co-courant descendant, des particules de matériau granulaire et de l'eau sale à évacuer, - un déflecteur (13) destiné à éviter la perturbation des zones précédentes par le mélange triphasique eau - air - matériau granulaire formé au cours du lavage, placé sous lesdites zones et orientant ce mélangE vers une zone de dégazage extérieure, où l'air est évacué avant que le mélange, devenu diphasique, entre dans les zones de tranquillisation/décantation.
Patent CA-2046478-A1 (CA)
Title: Method for obtaining in separate for a magnetic rare earth type material, transition metals and boron for corrosion resistant magnets
Inventor: GABRIEL ARMAND
IPC: B22F9/02
Filed: 1991-07-08
Abstract: The invention relates to a method of obtaining friable and relatively inert TR Fe B type magnetic materials in divided form which lead to magnets having improved corrosion resistance. This method involves treating the material in an atmosphere containing (or capable of containing) hydrogen under the following conditions of absolute pressure (P) and of temperature (T DEG  C.): if P</=Pa, 250<T<550; and if P>Pa, 250+100 log (P/Pa)<T<250+100 log (P/Pa) log base 10, Pa being atmospheric pressure. The invention is used for obtaining sintered TR Fe B magnets having improved corrosion resistance.
Patent CA-2047842-A1 (CA)
Inventor: LE NOANE GEORGES
IPC: G02B6/44
Filed: 1991-07-24
Abstract: P R E C I S   D E   D I V U L G A T I O N               Le câble de télécommunication selon l'invention comporte  une  série  de  fibres  optiques      de  préférence revêtues d'une couche d'identification colorée     ,  divisé en  modules  chacun  enveloppé  d'une  gaine  de maintien de faible épaisseur,  facilement déchirable et de préférence de  couleurs  variées  en  contact  avec  les  fibres optiques, et  une  enveloppe  de  protection       en  contact  avec  les gaines de maintien.                Figure unique.
Patent CA-2050141-A1 (CA)
Inventor: WADA MANABU
IPC: F02D11/02
Filed: 1991-08-28
Abstract: An engine intake structure of a vertical engine disposed below an engine compartment hood of a vehicle in which the throttle body is inclined relative to the longitudinal and lateral axes of the vehicle so that the distance between the hood and the acceleration cable bracket and the distance between the hood and the throttle body are substantially equal to each other.
Patent CA-2051254-A1 (CA)
IPC: H01S5/028
Filed: 1991-09-12
Abstract: A method of fabricating a semiconductor laser device includes disposing a lower cladding layer, a superlattice active layer, an upper cladding layer, and a contact layer in the named order on a substrate, disposing, on resonator end surfaces, films containing a material which can cause disorder of the semiconductor superlattice structure at a high temperature, and causing current to flow between the substrate and the contact layer to cause laser oscillations.  The laser oscillations cause laser light to be generated, which is absorbed at the resonator end surfaces.  The resonator end surfaces are locally heated due to absorption of laser light, whereby the disorder-causing material is diffused into the resonator end surfaces and the semiconductor superlattice structure in the vicinity of the resonant end surfaces is disordered to thereby form window regions.
Patent CA-2052087-A1 (CA)
Title: Electromagnetic valve
Inventor: NICOLAISEN HOLGER
IPC: H01F7/16
Filed: 1991-09-24
Abstract: Abstract An electromagnetic valve (1) is described, in the coil arrangement (8) of which there is arranged a stationary core (10).  The core (10) has a stop face (12) co-operating with one side (13) of an armature (14), all of which are arranged in a damping chamber (11).   On its other side (15) the armature (14) bears a closure member (16).   Between the armature (14) and a guide means (17) there is a throttling path (24) which connects the damping chamber (11) with a valve seat chamber (23).   This electromagnetic valve is especially suitable for conveying contaminated media.
Patent CA-2054077-A1 (CA)
Title: Stationary blade design for l-oc row
Inventor: FERLEGER JUREK
IPC: F01D9/02
Filed: 1991-10-23
Abstract: 55,461 ABSTRACT OF THE DISCLOSURE A stationary blade of a steam turbine having a rotor and an inner cylinder for mounting the stationary blade in a row with plural identical stationary blades, comprising an airfoil having a leading edge, a trailing edge, a pressure-side concave surface and suction-side convex surface extending between the leading and trailing edges,  A stagger angle being defined by as an angle of a chord between the leading and trailing edges to a longitudinal axis of the rotor; an outer ring for connecting a proximal end of the airfoil to the inner cylinder; an inner ring connected to a distal end of the airfoil; and a seal assembly carried by the inner ring and sealingly engaging the rotor; wherein the stagger angle ranges from about 42° at the distal end of the airfoil to about 52° at the proximal end.
Patent CA-2054187-A1 (CA)
Title: Razor blade technology
Inventor: KRAMER CAROLYN M
IPC: B26B21/60
Filed: 1991-03-04
Abstract: A process for forming a razor blade includes the steps of providing a polycrystalline ceramic substrate (10) of less than two micrometer grain size, mechanically abrading an edge of the polycrystalline ceramic substrate to form a sharpened edge thereon that has an included angle of less than twenty degrees; and sputter-etching the sharpened edge to reduce the tip radius to less than 300 Angstroms and form a cutting edge. The resulting blades exhibit excellent shaving properties.
Patent CA-2054409-A1 (CA)
Title: Fat mixture for infant and adult nutrition
Inventor: GIL ANGEL
IPC: A23L33/00
Filed: 1991-10-29
Abstract: Fat mixture for infant and adult nutrition, basically comprising a mixture of phospholipids from the cerebrum of domestic animals, at least one vegetable oil, and/or at least an animal fat, and/or at least a fish oil, and/or medium chain triglycerides, in which the ratios between oleic/linoleic/alpha-linolenic fatty acids, between arachidonic/docosahexaenoic fatty acids, and its phospholipids content are similar to those of human milk and mediterranean diet.